Pneumatic connection rod type rotary cutting mould

Abstract

The invention discloses a pneumatic connection rod type rotary cutting mould which comprises an upper mould and a lower mould, wherein the upper mould comprises an upper mould seat, a convex mould fixing plate, a discharge plate and a pressure plate; a nitrogen spring is arranged in the upper mould seat; a rotary cutting concave mould and a guide pin are arranged in the pressure plate; the lower mould comprises a lower mould plate, a lower base plate and a lower mould seat; a rotary cutting convex mould is arranged in the limit grooves arranged on the upper surface of the lower base plate and the lower end surface of the lower mould plate, and corresponds to the rotary cutting concave mould; the lower part of the rotary cutting convex mould is also provided with a rotary cutting convex mould resetting mechanism; in the convex mould fixing plate, a front driving block, a rear driving block, a left driving block and a right driving block of the rotary cutting convex mould are also arranged in the front, rear, left and right directions of the mould; the four driving blocks cooperate with the outer side of the rotary cutting convex mould; and a pneumatic connection rod mechanism is arranged in a limit groove formed by the upper surface of the pressure plate and the lower end surface of the discharge plate. The pneumatic connection rod type rotary cutting mould disclosed by the invention not only can guarantee the product precision and improve the production efficiency, but also finish all processes in a set of progressive mould, thereby greatly saving the cost and improving the market competitiveness.

Description

technical field [0001] The invention relates to a stamping progressive die, more specifically to a pneumatic connecting rod type rotary cutting progressive die, which belongs to the technical field of die manufacturing. Background technique [0002] At present, some locks, automobile starter motors, electric motors and other straight rotary deep-drawn parts, as well as bottomless rotary deep-drawn parts, cannot be mass-produced in ordinary progressive dies with ordinary stamping equipment. There are two reasons for the production of this type of parts: First, because the rotary cutting die set in the clamping plate is very long, when the mold is closed, the rotary cutting die will be ahead of the guiding mechanism of the mold (such as the guide pin) Contact with the material belt or product, resulting in inaccurate product positioning, unable to complete complete continuous production; second, the rotary cutting die set on the upper mold must be completely separated from the...

AI Technical Summary

Problems solved by technology

[0002] At present, some locks, automobile starter motors, electric motors and other straight rotary deep-drawn parts, as well as bottomless rotary deep-drawn parts, cannot be mass-produced in ordinary progressive dies with ordinary stamping equipment. There are two reasons for the production of this type of parts: First, because the rotary cutting die set in the clamping plate is very long, when the mold is closed, the rotary cutting die will be ahead of the guiding mechanism of the mold (such as the guide pin) Contact with the material belt or product, resulting in inaccurate product positioning, unable to complete complete continuous production; second, the rotary cutting die set on the upper mold must be completely separated from the material belt before feeding, because the rotary cutting die It is very long. It is the last to leave the material belt when the mold is opened, and it is the first to contact the material belt when the mold is closed. Therefore, the feeding time of the feeder is too short to make continuous production. Therefore, due to the limitation of the molding process and equipment stroke, in ordinary stamping equipment It is impossible to complete the complete process of guiding, deep drawing, rotary cutting, feeding, etc.

[0003] At present, the production of such parts often uses molds to produce semi-finished products, and then adds turning processing to complete the production of the entire part, that is, usually uses a single-process mold to complete the drawing process, and then uses a lathe to process the end face or bottom of the drawn part. In this way, many sets of molds and machining equipment are required to complete the manufacture of a complete part. At the same time, a large number of personnel, stamping equipment, turning equipment, turning tools, semi-finished turnover boxes, venues, etc. are required, resulting in the manufacturing of parts. Low precision and production efficiency, unstable parts size, high energy consumption and high unit price of parts, and short-term mass production cannot be carried out. It still belongs to the traditional extensive production mode

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